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The authors report on a OTDR system using an infrared subpicosecond pulse source in conjunction with balanced heterodyne detection. Experimental results show a sensitivity of more than 100 dB and a resolution of 60 μm in air ...
We employ grazing-incidence femtosecond x-ray diffraction to characterize the coherent, femtosecond laser-induced lattice motion of a bismuth crystal as a function of depth from the surface with a temporal resolution of 193 +/- 8 fs. The data show direct c ...
We report on a bulk GaAlAs mirror which is used as a saturable absorber for subpicosecond pulse generation around 835 nm. The mirror consists of a 200 nm layer of bulk GaAlAs (with approximately 5% Al content) which is grown on a linear Bragg mirror and is ...
The subpicosecond OTDR has been investigated as a diagnostic tool for the fiber optics components and integrated waveguide devices. The mode-locked dye laser at 1.3 μm was excited by Nd-YAG compressed pulses. 300 fsec pulses have been generated at the r ...
A Nd:YAG pumped dye laser emitting light pulses of 0.3 ps width, is used as source for a high resolution optical time domain reflectometer. The operating wavelength is tunable around 1.3 μm and suitable for measurements on structures for applications in ...
Consulting Committee Professional Electroeng. Organ. Finland1987
